/**
 * Copyright 2017 Alex Yanchenko
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License. 
 */
package org.droidparts.inner.reader;

import android.app.Activity;
import android.os.Bundle;

public class BundleExtraReader {

	static Object readVal(Object obj, String key, boolean optional) throws Exception {
		Bundle data;
		if (obj instanceof Activity) {
			data = ((Activity) obj).getIntent().getExtras();
		} else if (LegacyReader.isSupportAvaliable() && LegacyReader.isSupportObject(obj)) {
			data = LegacyReader.getFragmentArguments(obj);
		} else {
			data = FragmentsReader.getFragmentArguments(obj);
		}
		Object val = null;
		if (data != null && data.containsKey(key)) {
			val = data.get(key);
		} else {
			if (!optional) {
				throw new Exception("Bundle missing required key: " + key);
			}
		}
		return val;
	}
}
